Here is the full list of all 28 Farmtale achievements.
The base game contains 0 achievements, and there is 1 DLC pack containing 28 achievements.
Collect 3500 Honey Jars
Collect 10000 Bacon
Plant 300 Crops
Use 100 Experience Boosts
Use 100 Speed Boosts
Collect 5000 Cheese
Collect 21000 Wool
Collect 35000 Milk Containers
Reach Level 50 With the Bee Farm
Reach Level 50 With All Farms
Reach Level 50 With the Goat Farm
Reach Level 50 With the Pig Farm
Reach Level 50 With the Sheep Farm
Reach Level 50 With the Cow Farm
Collect 200000000 Coins
Reach Level 50 With the Chicken Farm
Collect 75000 Eggs
Purchase 350 Farm Upgrades
Collect 200000 Products in Total
Collect 50000 Fur Balls
Collect 70000 Feathers
Reach Level 50 With the Rabbit Farm
Reach Level 50 With the Duck Farm
Complete 35 Quests
Collect 20000000 Scrap Material
Build All Farms
Own 30 Animals
Chop 500 Trees